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뺄셈 2자리 - 1자리

		2	0
			4
		1	6

		2	7
			6
		2	1

		1	3
			2
		1	1

		2	2
			8
		1	4

		1	5
			3
		1	2

		6	7
			2
		6	5

		1	0
			2
			8

		5	3
			2
		5	1

		6	6
			4
		6	2

		5	0
			1
		4	9

		6	6
			3
		6	3

		2	9
			1
		2	8

		2	8
			8
		2	0

		3	9
			5
		3	4

		4	3
			2
		4	1